env: ti: k3_dfu: Drup mmcpart for rootfs

According to [0], raw access to mmc should not have mmcpart in the
entry. This was fixed in k3_dfu_combined.env but k3_dfu.env had been
overlooked.

[0] doc/usage/dfu.rst

Fixes: 53b406369e9d ("DFU: Check the number of arguments and argument string strictly")
Signed-off-by: Neha Malcom Francis <n-francis@ti.com>
diff --git a/include/env/ti/k3_dfu.env b/include/env/ti/k3_dfu.env
index 2015296..b42cf21 100644
--- a/include/env/ti/k3_dfu.env
+++ b/include/env/ti/k3_dfu.env
@@ -9,7 +9,7 @@
 
 dfu_alt_info_emmc=
 	rawemmc raw 0 0x800000 mmcpart 1;
-	rootfs part 0 1 mmcpart 0;
+	rootfs part 0 1;
 	tiboot3.bin.raw raw 0x0 0x400 mmcpart 1;
 	tispl.bin.raw raw 0x400 0x1000 mmcpart 1;
 	u-boot.img.raw raw 0x1400 0x2000 mmcpart 1;